package com.atguigu.gulimall.member.exception;

/**
 * @author : wenchao.long
 * @date : Created in 2021/8/9 16:49 周一
 * @description :
 */
public class UserNameExistException extends RuntimeException {

    private static final long serialVersionUID = -7454829505359135058L;

    public UserNameExistException() {
        super("用户名已存在");
    }
}
